VirtualBox is a family of powerful x86 virtualization products for enterprise as well as home use. Not only is VirtualBox an extremely feature rich, high performance product for enterprise customers, it is also the only professional solution that is freely available as Open Source Software under the terms of the GNU General Public License (GPL).

VirtualBox is being actively developed with frequent releases and has an ever growing list of features, supported guest operating systems and platforms it runs on. VirtualBox is a community effort backed by a dedicated company: everyone is encouraged to contribute while innotek ensures the product always meets professional quality criteria.

WHAT’S NEW

Version 5.1.16:

VMM: don't access the MSR_IA32_SMM_MONITOR_CTL MSR if dual-monitor treatment is not available (KVM workaround, bug #14965)

VMM: another fix for handling certain MSRs on ancient CPUs without VT-x support for MSR bitmaps

VMM: fixed VERR_SSM_LOAD_CPUID_MISMATCH errors when restoring a saved state with SMP guests on hosts without the CPUID/HTT bit set

VMM: fixed a bug in call gate emulation

VMM: FWAIT instruction fix

VMM: fixed a sporadic guest hang under certain conditions

GUI: hide the mini-toolbar from the taskbar and the pager on certain X11 hosts